hello guys,
i am new to this forum im having a trouble updating my ipad2 3g.
it was on original firmware 4.3.5 non jailbreak, them i decided to update to 5.1
everything was going ok, but when it reaches 60% the status bar freezes and stays there forever, there's no error it just stops and makes no progress.

i have tried all of these below.

put on DFU and restore manual with original .ipsw (no success)
change the usb cable and port (no success)
reset my internet modem (no success)
try restore in a windows xp PC (no success)
downgrade with a another ipsw (no sucess)

i really don't know what to do anymore!
i cant take back to the store because a live in Brazil and i bought this ipad2 in the US when i as in vacation.

so i would really like to solve this problem.

Sorry to hear you're having problems.

Have a look at this thread here: TUTORIAL - Failsafe method to restore the current version of IOS

Hopefully, that'll help you get all sorted out. Good luck and do let us know how you get on.

Marilyn